Ecology Labs Incorporated will pay a dividend of $$4\mathrm{.}30$ per share in the next $12$ months. The required rate of return is $18\%$ and the constant growth rate is $10\%.($A$)$ Compute the price of Ecology Labs' common stock. $($B$)$ Assume the required rate of return goes up to $23\%.$ What will be the new price? $($C$)$ Assume the growth rate goes up to $13\%.$ What will be the new price? The required rate of return goes back to its original value of $18\%.($D$)$ Assume the dividend is $$5\mathrm{.}10.$ What will be the new price? Assume the required rate of return is at its original value of $18\%$ and the constant growth rate goes back to its original value of $10\%.$